Instructions for Pulse Width Modulation (PWM)

Step 1: Click on 'Generate Message' button to generate input message signal
Step 2: Then click on 'Generate Carrier' button to generate carrier signal
Step 3: You can change the message and carrier signal frequencies from the input field. The carrier frequency has to be more than the message frequency
Step 4: Click on 'Generate PWM Signal' button to generate Pulse Width Modulated (PWM) Signal

Message Frequency in Hz:

Square Carrier Frequency in Hz:

PWM

Instructions for Pulse Width Demodulation

Step 1: Ramp generator produces a ramp signal that either increases or decreases linearly. And Converts pulse width information into a varying voltage. Adder combines the ramp and PWM signals into a composite signal carrying the original information and then low-pass filtering
Step 2: You can Demodulate the PWM Signal clicking on the 'Demodulate PWM Signal' button

Cut-off Frequency (Hz)

PWM_Demodulation